Effect of He 2+ ion irradiation on the mechanical properties of automated fibre placement (AFP) CF-PEEK thermoplastics composites.

Autor: Oromiehie E; ARC Training Centre for Automated Manufacture of Advanced Composites, School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia. e.oromiehie@unsw.edu.au., Nair V; School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia., Short K; Australian Nuclear Science and Technology Organization (ANSTO), Lucas Heights, NSW, 2234, Australia., Wei T; Australian Nuclear Science and Technology Organization (ANSTO), Lucas Heights, NSW, 2234, Australia., Bhattacharyya D; Australian Nuclear Science and Technology Organization (ANSTO), Lucas Heights, NSW, 2234, Australia.; School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia., Prusty BG; ARC Training Centre for Automated Manufacture of Advanced Composites, School of Mechanical and Manufacturing Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia.; Sovereign Manufacturing Automation for Composites CRC Ltd (SOMAC CRC), Sydney, NSW, 2052, Australia.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Nov 01; Vol. 13 (1), pp. 18787. Date of Electronic Publication: 2023 Nov 01.
DOI: 10.1038/s41598-023-45742-8
Abstrakt: Carbon fibre-reinforced polyetheretherketone (CF-PEEK) composites have gained significant usage across diverse industries like automotive and aerospace due to their desirable characteristics. These properties encompass recyclability, low density, high strength, wear resistance and thermal stability. The components made from CF-PEEK composites for space applications will be subjected to a high radiation environment due to the incoming cosmic rays, comprising protons, α particles, electrons, γ rays, etc., once they escape the Earth's atmosphere. The ion irradiation of CF-PEEK is accompanied by radiation-induced effects, which drastically change the structure and properties of irradiated material. Since the resistance of CF-PEEK to radiation damage has not been studied extensively, this study aims to understand the effect of high-energy He 2+ ions on the microstructure and properties of CF-PEEK composites manufactured using automated fibre placement (AFP) under different processing conditions. The samples have been radiated with 5 MeV He 2+ ions using an energy degrader wheel to create a layer with relatively uniform damage. Then, were characterized using optical and scanning electron microscopy and their hardness was evaluated using nanoindentation. It was observed that, irradiation increases the hardness of the fibres in all cases. Also, fibre orientation affects the hardness in a statistically significant manner in both unirradiated and irradiated conditions.
(© 2023. The Author(s).)
Databáze: MEDLINE
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